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Merge branch 'psd'

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This commit is contained in:
Jan Engelhardt
2009-09-26 00:19:57 +02:00
parent 7ab033e64c 342ccf62b2
commit 674560d2d9
1 changed files with 7 additions and 4 deletions
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11
extensions/xt_psd.c
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@@ -102,8 +102,9 @@ static inline int hashfunc(struct in_addr addr)
static bool static bool
xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match) xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
{ {
struct iphdr *iph; const struct iphdr *iph;
struct tcphdr *tcph; const struct tcphdr *tcph;
struct tcphdr _tcph;
struct in_addr addr; struct in_addr addr;
u_int16_t src_port,dest_port; u_int16_t src_port,dest_port;
u_int8_t tcp_flags, proto; u_int8_t tcp_flags, proto;
@@ -117,7 +118,7 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
iph = ip_hdr(pskb); iph = ip_hdr(pskb);
/* Sanity check */ /* Sanity check */
if (ntohs(iph->frag_off) & IP_OFFSET) { if (iph->frag_off & htons(IP_OFFSET)) {
pr_debug("sanity check failed\n"); pr_debug("sanity check failed\n");
return false; return false;
} }
@@ -134,7 +135,9 @@ xt_psd_match(const struct sk_buff *pskb, const struct xt_match_param *match)
addr.s_addr = iph->saddr; addr.s_addr = iph->saddr;
tcph = (void *)iph + ip_hdrlen(pskb); tcph = skb_header_pointer(pskb, match->thoff, sizeof(_tcph), &_tcph);
if (tcph == NULL)
return false;
/* Yep, it's dirty */ /* Yep, it's dirty */
src_port = tcph->source; src_port = tcph->source;